Means for attaching an artificial tooth to a bridge-plate.



H. D. MORGAN.

MEANS FOR ATTACHING AN ARTIFICIAL TOOTH TO A BRIDGE PLATE. APPLICATION FILED FEB. 24. [916. V 1,201,070, Patented Oct. 10, 1916.

WITNESSES HUG-H D. MORGAN, OF YOUNGSTOWN, OHIO.

MEANS FOR ATTACHING AN ARTIFICIAL TOOTH TO A BRIDGE-PLATE.

Application filed February 24, 1916. serial No. 80,168.

To all whom it may concern Be it known that I, HUGH D. MORGAN, a citizen of the United States, and a resident of Youngstown, in the county of Mahoning and State of Ohio, have invented a new and Improved Means for Attaching an Artificial Tooth to a Bridge-Plate, of which the following is a full, clear, and exact description. My invention has for its object to provide means for attaching an artificial tooth to a bridge plate which consists in providing a pin holder mounted to slide longitudinally in a receiver which is rotatably disposed in an undercut hole in a bridge. The tapering sides of the hole at the undercut preventthe removal of the receiver under normal conditions, while permitting the adjustment of the pin holder by a movement thereof longitudinally of the receiver in connection with the rotation of the receiver.

Additional objects of the invention will appear in the following specification in which the preferred form of my invention is described.

In the drawings similar reference characters denote similar parts in all'the views, in which Figure 1 is a view illustrating the means for securing an artificial tooth to a bridge; 30 Fig. 2 is an enlarged fragmentary view of a bridge having an undercut hole in which my means for attachin a tooth are disposed; Fig. 3 is a view similar to that illustrated in Fig. 2, but with the receiver in a p different position; Fig. 4 is an enlarged perspective form of the pin holder; Fig. 5'is an' enlarged perspective view of the receiver; and Figs. 6 and 7 are enlarged views showing how the receiver and pin holder are so cured in adjusted position in the hole in the bridge by. means of cement, and how the tooth is secured to the pin held by, the pin holder.

By referring to the drawings, it will be seen that a bridge plate 10 of a bridge is secured to natural tooth 11, in the customary manner, and that pins 13 are secured to the artificial teeth, one of which is shown at 12, so that the pins 13 may be secured to the bridge plate 10.

The pins 13 are held in position by pin holders 14, these pin holders 14 being adjusted relatively to the bridge plate 10, and being secured thereto in the following manner:'In the bridge plate 10 there is drilled a hole '15having an undercut 16. When the Specification of Letters Patent.

Patented Oct. 10, 1916.

hole 15 with undercut 16 has been completed, a receiver 18 is disposed. in the hole 15, with its ends 19 normally disposed in the undercut portion 16 of the hole 15, so that under normal conditions, the receiver 18 w1ll not be removable from the hole 15. The receiver 18 is constructed with a back 20, and sides 21, which are bent over in the di-' rection of each other to form a slot 22 in which the base .23of the pin holder 14 is disposed, it being possible to slide this pin holder 14 longitudinally of the receiver 18, with a slotted portion 24 projecting through the slot 22 to permit of the insertion of a pin in the said slotted portion 24 of the pin holder. When the base 23 of the pin holder is embraced by the bent sides 21 of the receiver 18 and the said receiver is disposed in the hole 15, it is possible to rotate the receiver 18 in the hole 15, as illustrated in Figs. 2 and 3 of the drawings, itlbeing also possible to move the pin holder 14 longitudinally ofthe receiver 18, as' indicated by the dotted lines in Figs. 2 and 3. By the said means, the positions of the slotted portions 24 of the pin holders may be adjusted relatively to the pins on the artificial teeth. The sides of the slotted portions 24 of the pin holders 14 may be pressed together to insure a tight fit when the pins on the teeth are adjusted in position. When the adjustment has been completed, the pin holder 14 is secured in position by cement, as illustrated in Figs. 6 and 7, the pins on the tooth being barbed before the tooth is finally secured to the bridge. I prefer to use two pins 13 for securing each tooth 12 to the bridge plate 10.

It will be understood that the invention may be employed with plates other than those used with bridge'work.

Having thus describedmy invention, what I claim as new, and desire to secure by Letters Patent, is:

1. A bridge plate having a hole, a receiver for rotating in the hole and having a slot disposed substantially at right angles to its axis of rotation, and a pin holder slidably mounted in the said slot.

2. A bridge plate having an undercut hole, a receiver for rotating in the hole and having a slot disposed substantially at right angles to its axis of rotation, and a pin holder slidably mounted in the said slot.

3. A bridge plate having an undercut hole, a receiver for rotating in the hole, and a pin holder mounted on the receiver and normally disposed eccentrically relatively thereto so that the position of the in holder may be adjusted relatively to t e bridge plate by the rotation of the receiver.

4. A bridge plate having a hole, a receiver having a back with opposite ed turned over to form a slot, the receiver eing normally disposed transversel in the hole, and a pin holder having a base the edges of which are normally embraced by the said edges of the receiver.

5. In an article of the class described, a receiver having a back with opposite edges turned over to provide a slot,-and a pin holder having a base the edges of which are normally embraced by the said edges of the receiver.

6. A bridge plate having an undercut hole, a receiver having a back with opposite edges turned over to form a slot, the receiver .being normally dis osed transversely in the hole, and a slotte pin holder having a base the edges of which are adapted to be embraced by the said edges of the receiver for the purpose specified.

7. A plate having a hole, a receiver for rotating in the hole and having a slot disposed substantially at right angles to its axis of rotation, means to prevent the ready removal of the said receiver, and a pin holder slidably mounted in the said slot.

8. In an article of the class described, a receiver having 'a back with opposite edges turned over to provide a slot, a pin, and means for supporting the pin provided with a base, the edges of which are normally embraced by the said edges of the receiver.

9. A plate having a hole, a receiver adapted to be disposed in the hole and having a slot extending substantially parallel with the faces of the plate, and a pin holder slidabl mounted in the said slot.

10. plate having a hole, a pin holder, and means for guiding the pin holder in the plate substantially parallel with the faces of the plate.

11. A bridge plate having an undercut hole, a receiver for rotating in the hole, and a pin holder adjustably mounted on the receiver.

12. In an article of the class described, a plate having a hole the inner diameter of which is greater than the holes outer diameter, and an elongated receiver normally disposed transversely in the hole at its inner diameter and of a length greater than the outer diameter of the hole and less than the inner diameter.

13. A bridge plate having a hole, a receiver for rotating in the hole, a pin mounted on the receiver and normally disposed eccentrically relatively thereto so that the position of the pin may be adjusted relatively to the plate by the rotation of the receiver.

l4.-A bridge plate having a hole in which a receiver may be secured, a receiver adjustable by rotating in the hole until secured in adjusted position, the receiverhaving a slot 

